Wall furnace



April 27 1926.

, J' S. ANDREWS WALL FURNACE ya @(5. v

Patented Apr. 27, 1926.

PATNT o-FFicE.

JOHN S.` ANDREWS, 0F LOS ANGELES, CALIFOB'NA.

XWALL FUnNAci-i applicati@ mea aune 29, 1925. serial No. 40,181. f

To all whom 'it may concern.'

Be it known that I, JOHN S. ANDREWS, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvementsin WallFurnaces, of whichthefollowingis aspecification.

My invention relates generally to improvements in household heatingappliances and in particular to a wall heater`or furnace, the principalobjects of my invention being to generally improve upon and simplif theconstruction of the existing forms o gas burning wall heaters, toprovide a heater that is self-contained or of -unitary structure,

thereby permitting its ready' installation in the wall of-a building7and further to provide a wall heater of the character referred to thatpresents a neat and nished appear? ance and which will be very effective1n performing its intended functions.

Further objects of my invention are to construct the wall heater so thatthe cooler air from the lower portion of the room in which the heater islocated and fresh air admitted through an opening in the floor abovewhich -the heater is located will becaused to circulate through thefurnace and be heated therein and in such heated con-' dition bedischarged from openings in the upper portion of the furnace housing.

. wall furnace or heater of my improved construction.

Fig. 2. is an enlarged vertical section taken approximately on the line2?-2 of Fior. 1.

iig. 3 is a horizontal section taken on the line 3 3 of Fig. 2.

F ig. l is a vertical section taken approxi! mately on the line 4-4 ofFig. 2.

Fig. 5 is a vertical section taken throu h,- the upper portion of amodified form of-t e furnace wherein the burner chamber is provided witha vent.

' Fig. 6 is an elevational View partly in section of the flexible metaltube that forms a connection between the gaseous fuel supply pipe andtheburner of my improved heater. y

In preparing a space or chamber in a wall for thei reception of myimproved heater, it is only necessary to arrange a heater H, preferablya two by four, 'between a pair of wall studs S and to form an air inletopening 0 in the floor F beneath the -space or chamber. The usualmopboards-M are arranged on tle wall in a convenient manner and agass'upply pipe Pf is broughtthrough the floor or through the opening O1into the lower portion of the furnace receiving chamber.

The furnace or heater, which is selfcontained or of unitary structure inorder that it may be installed as a complete -unit in the Wall pocket orchamber, comprises an outer wall or plate 10, preferably of cast metaland having inclined flanges such as 11 on its sides, top and bottom andthe edges of which fianges are adapted to bear against the surface ofthe wall and pocket or cham. ber therein.

Formed in the inclined flange 11 at the top of the wall or panel l0 is aseries of heated fresh air outlets 12 and formed in the wall or panelimmediately below these openings is a second series of heated air outletopenings- 13. A third set .of openings such as 14'is formed in the wallor panel 10 below the openings 13 and at the lower portion of said wallor panel is formed 'a fourth set of openings 15 which are for theadmission of cool air from the bottom of the room into the lower portionof the heater.

Secured to the rear side of wall or panel 10 are the forward edges offlanges 16 that extend forwardly from the topA and side edges of a rearwall 17. This wall and its flanges are preferably of suitable sheetmetal that is covered or coated with asbestos or analogous fire-proofmaterial. Wall l17' occupies a position in the rear portion of the wallpocket, while flanges 16 are posi-` tioned adjacent to the studs S andheader H.

Secured inany suitable manner to the rear side of wall or panel 10 is abox-like member preferably formed of sheet metal and comprising a rearwall 18, side flanges 19, a top fiange 20 and a bottom fiange 21. Thisrear wall 18 is spaced a slight distance in front of wall 17 therebyproviding a narrow vertically disposed fresh air circulating and heatingchamber 22 between said walls 17 and 18, which chamber extends betweenthe side flanges 16 and 19 and the upper end of said heating-chamberextends between the upper one of ythe iianges 16 and the top openings 12in flange 11 at the top of'plate 10.

Arranged in the lower portionf of the space or chamber within thebox-like structure comprising wall 18 and flanges 19, 20

-and 21, is a horizontally disposed gaseous fuel burnerV 23 havingsuitably formed jet openings in its upper portion and disposed overthesejet openings are radiant heating elements 24 that are formed of fireclay or analogous material.

Leading from the upper endof gas supply pipe-P upwardly t rough bottomflange 21 is a connecting duct 25 in which is located a valve 26, andthe operating handle 27 for said valve occupies a position. directly infront of the lower portion ofwall o r panel 10. l

The radiant heating elements 24 are p0- sltioned directly behind theseries of openings 14 and arranged behind and above and 'to the sides ofsaid radiant elements is a wall 28 referably of metal, the rear portionof w 'ch constitutes a reflector to throw Y heat from the radiantelements forwardly through openings 14. The rear portion of wall 28` isspaced a slight distance in front of wall 18 thereby providing avertically` disposed duct 29 open-at its lower end and ices of theburner 23 and burns in the radiant elements 24 is admitted to saidburner and controlled by proper manipulation of valve handle 27. Directheat from the radiant elements will be reflected forwardly throughopenings 14 by the rear portion cf wall 28 and comparatively cool airfrom the lower portion of the room in which the heateris located will,upon entering openings 15 and assing upwardly through duct -29, be heateas. a result of its contact with the heated wall 29 and in such heatedcondition, this air will discharge through openings 13 into the room tocirculate upwardly therethrough. Simultaneously fresh air from beneaththe oor F will enter opening O and circulate upwardly through duct 22lthereby becoming heated to a certain degree and in such heated conditionthis heated fresh air will discharge from `distances between the supplyassaut-z openings 12 to circulate upwardly through the room in which theheater is located.

Thus the admission of a certain amount of fresh air 'into and throughthe heater tends to keep the air fresh and pure in the room in which theheater is located and said fresh air supplying the oxygen that isvnecessarily consumed in the operation of the gaseous fuel burner 23.

In the event that it is desirable or ne- ',cessaryto equip the heater`with a vent for flange 20 and communicates with the outlet` thepurposey of carrying off. products of combustion from the gaseous fuelburner, a metal duct such as 30 leads from the upper end of the radiantinclosing wall 28, said ductbeing carried through the upper portions ofwalls 17 and 18 and up through header H and the space in the -wall abovethe latter (see Fig. 5). Thus provision is made for carrying off anyfumes or noxious gases that might be produced during the operation ofthe burner.

Tube 25 that forms a connection between the' supply pipe P and valve 26of the burner is preferably. formed of copper or similar soft metal inorder that it ma he readily bent and adjusted to suit variable ipe andburner, and when the heater is eing installed.v

The ends of this liexible tubing are connected by suitably packed joints25 with the supply pipe P and the return elbow or fitting that isassociated with valve 26.

By the use of the fiexible tube, much time, labor and consequent expensemay be saved in the installation of the heater for, by bending saidpipe, the connections may be easily and quickly made without thenecessity for careful setting or roughing in of the gas supply pipe.

The iexible tube is furnished with the heater and lthus enables thelatter to be readily connected for use.

Thus it will be seen that I have provided a relatively simple andpractical wall heater which during'operation is effective in producing acirculation of warm fresh air through the room in which it is lo' cated'and the heater being of unitary structure so as to enable it to bereadily in stalled. The construction of the heater is such that it canbe readily cleaned and maintained in a sanitary condition and as theburner and radiance associated therewith are practically surrounded bythree metal walls, one or more of which may be coated or lined withsheet asbestos or'the like, the danger of fire resulting from the use ofthe heater is eliminated.

It will be understood that minor changes in the size, form andconstruction of the various parts of my im roved wall furnace may bemade and su tituted for those herein shown 'and described, without de-`2; The combination with a'building wall in the lower portion of' whichis formed a,v

ypocket and there being an opening in the ao pocket, of a .heatingappliancelocated in 1 linseam??I i I' parting from the spirit of theinventiom'the A scope of which isset forth the appended claims.v v

- I claim-as my invention:

in thelower portion o f-which is formed a cket and there being anopening' in the A oor-beneath said wall,`which o ening communicateswitl'rthe lower portion of said pocket, .of a heating appliance .locatedin,

. lsaidpocketand comprising a` face plate, a

housing secured to the rear side of said face plate and occupying therear portion of thespace within said pocket the lower end'ofwhichhousing is open', a second housing ari, ranged on the rear side oftheface plate and spaced apart from .the first mentioned housing, the.lower end 'of which Tsecond men- Y tioned housing being closed, agaseous fuel burner arranged vwithin the chamber in thelower portion `ofSaid second mentioned housing, radiant heating elements disposed ,abovesaid gaseous fuel burner anda reflecting housingarranged to the rear ofsaid radiant heatin elements.

floor beneath said Wall, which opemng cominunicates with the lowerportion of' said said pocketA and comprising .a face '-plate, a'

housing secured to the rearside of said 'face plate and occupying therear portion of the spacel within said pocket the lower endof whichhousing is open a second housing arranged on the rear side, ofthevface/,plate and spaced apart from the yfirst mentioned housing, thelower end of whichfsecond mentioned housing bei'no closed,awgaseous'fuel burner arrangedwitliin the chamber/in the lower portionof'said' second mentioned housing, radiant heating elements disposedabove said gaseous fuel burner, a' reflecting housheating ing arranged'to the rear of. said radiant elements and a vent duct leading from theupper end. of the housing that inclosessa'id radiant heatingelements.

3. The combination with a building in the lower ortion of which isformed a ocket there eingl an openin in the floor Beneath lsaid wall,which opening communi- 1. The combination with a building aan 'closed, agaseous fuel burner arranged with'- in the chamber in the lower portionof said second-mentioned housing, radiant heating yelementsdisposedabove said gaseous fuel burner, a reflecting housing arranged to therear of said radiant heating elements'and a tube .of iiexible materialconnecting the gas supply pipe that enters the lower end of said pocketwith said .gaseous-fuel burner.

4. The combination with a building wall inthe lower portion of which isformed a beneath saidvwall, which opening communicates with the lowerportion of said pocket and a gas supply pipe entering the lowerportionof said poc et, of a heating applipOck'et, there being an openingin the floor ance Alocated in said pocket and comprlslng a face plate, ahousing secured to the rear .side ofzsaid face-plate and occupying theArea-r portion of the space within said pocket the'lr'iwerl end of whichhousing is open, a

secondhousing arranged on .the rear side 'o the face plate and spacedapart from the Vvirstmientioned housing, the lower end1 of vwhichsecond-mentioned p -housing closed, a gaseous fuel burner 'arrangedwithbeing nthechamberfin the lower portion of said 'second-mentionedvhousing, radiant heating elements dis osed above. said gaseous fuelburner, a. re ect-.ing housing larranged to the 'rear of saidradiantheating elements, a tube offflejxible material connecting the gas supplypipethat enters Athe lower end of said pocket with saidl gaseous fuelburner and a vent'duct leading from the upper end of the housing thatmcloses said radiant heating elemental ture.-

J S. ANDREWS.

'In testimony whereof I affix my signa-

